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NSR database version of April 11, 2024.

Search: Author = W.Kurcewicz

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2021SE17      Phys.Rev. C 104, 024317 (2021)

S.Sekal, L.M.Fraile, R.Lica, M.J.G.Borge, W.B.Walters, A.Aprahamian, C.Benchouk, C.Bernards, J.A.Briz, B.Bucher, C.J.Chiara, Z.Dlouhy, I.Gheorghe, D.G.Ghita, P.Hoff, J.Jolie, U.Koster, W.Kurcewicz, H.Mach, N.Marginean, R.Marginean, Z.Meliani, B.Olaizola, V.Paziy, J.M.Regis, M.Rudigier, T.Sava, G.S.Simpson, M.Stanoiu, L.Stroe

Low-spin states in 80Ge populated in the β decay of the 80Ga 3- isomer

RADIOACTIVITY 80mGa(β-)[from decay of 80Zn produced in U(n, F), E=fast neutrons at the ISOLDE-CERN facility, followed by separation of fission fragments passed using the ISOLDE Resonance Ionization Laser Ion Source (RILIS) and high-resolution magnetic separator]; measured Eγ, Iγ, βγ- and γγ-coin using two HPGe detectors for γ rays and an NE111A organic plastic scintillator for β detection. 80Ge; deduced levels, J, π, β feedings, logft. Comparison with previous experimental results, and with shell-model and IBM calculations.

NUCLEAR STRUCTURE 70,72,74,76,78,80,82Ge, 82Se, 84Kr, 86Sr, 88Zr, 90Mo; calculated energies of second 0+ states by shell-model using Antoine code with JUN45 interaction, and NUSHELLX@MSU code with jj44bpn interaction, and IBM-1, IBM-2 models, and comparison with experimental values; Systematics of low-lying positive-parity levels up to 8+.

doi: 10.1103/PhysRevC.104.024317
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2020PA26      Phys.Rev. C 102, 014329 (2020)

V.Paziy, L.M.Fraile, H.Mach, B.Olaizola, G.S.Simpson, A.Aprahamian, C.Bernards, J.A.Briz, B.Bucher, C.J.Chiara, Z.Dlouhy, I.Gheorghe, D.Ghita, P.Hoff, J.Jolie, U.Koster, W.Kurcewicz, R.Lica, N.Marginean, R.Marginean, J.-M.Regis, M.Rudigier, T.Sava, M.Stanoiu, L.Stroe, W.B.Walters

Fast-timing study of 81Ga from the β decay of 81Zn

RADIOACTIVITY 81Zn(β-), (β-n)[from U(p, F), E=1.4 GeV at CERN PS-Booster (PSB) facility, followed by separation of ionized nuclei using the ISOLDE-RILIS]; measured Eγ, Iγ, b-, βγ- and γγ-coin, half-life of 81Zn decay, level half-lives by βγγ(t) fast-timing technique, β-delayed neutron branching ratio or Pn using HPGe and LaBr3 detectors for γ detection and a plastic scintillator for β detection at CERN-ISOLDE. 80,81Ga(β-); measured half-lives of 80Ga and 81Ga decays. 80,81Ga; deduced levels, J, π, Iβ, logft, B(M1), and B(E2). Comparison with large-scale shell model calculations using the NuShellX@MSU and ANTOINE codes with JUN45 and jj44b interactions. Systematics of low-lying levels in 71,73,75,77,79,81Ga, 79Cu, 83As, 85Br, 87Rb. 81Zn; discussed spin, parity and configuration of the ground state.

doi: 10.1103/PhysRevC.102.014329
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2019OL02      Phys.Rev. C 99, 024321 (2019)

B.Olaizola, L.M.Fraile, H.Mach, F.Nowacki, A.Poves, A.Aprahamian, J.A.Briz, J.Cal-Gonzalez, D.Ghita, U.Koster, W.Kurcewicz, S.R.Lesher, D.Pauwels, E.Picado, D.Radulov, G.S.Simpson, J.M.Udias

Properties of low-lying states in 65Co from lifetime measurements

RADIOACTIVITY 65Fe(β-)[from U(p, F), E=1.4 GeV followed by ionization using a Resonance Ionization Laser Ion Source (RILIS) at ISOLDE-CERN facility]; measured Eγ, Iγ, βγ- and γγ-coin, half-life of 65Fe g.s. from decay curves for γ rays, level half-lives by βγ(t) and βγγ(t) using fast timing technique. 65Co; deduced levels, J, π, β feedings, logft, B(M1), and B(E2). Comparison with large-scale shell model calculations.

NUCLEAR STRUCTURE 65Co; calculated levels, J, π, occupation numbers using shell-model with LNPS effective interaction. Comparison with experimental data.

doi: 10.1103/PhysRevC.99.024321
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2018BU16      Phys.Rev. C 98, 064320 (2018)

B.Bucher, H.Mach, A.Aprahamian, L.M.Robledo, G.S.Simpson, J.Rissanen, D.G.Ghita, B.Olaizola, W.Kurcewicz, J.Aysto, T.Eronen, L.M.Fraile, A.Jokinen, P.Karvonen, I.D.Moore, H.Penttila, M.Reponen, E.Ruchowska, A.Saastamoinen, M.K.Smith, C.Weber

New insights into triaxiality and shape coexistence from odd-mass 109Rh

RADIOACTIVITY 109Ru(β-)[from U(p, F), E=30 MeV]; measured Eγ, Iγ, γγ-coin, level half-lives using fast timing βγγ(t) technique at the IGISOL facility of University of Jyvaskyla. 109Rh; deduced levels, J, π, B(M1), B(E2).

NUCLEAR STRUCTURE 109Rh; calculated potential energy surface (PES) in (β, γ) plane, proton single-particle energies as function of deformation parameters Q0 and γ, minimum energy E(β, γ) for the different blocked configurations using HFB method.

doi: 10.1103/PhysRevC.98.064320
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2017OL03      Phys.Rev. C 95, 061303 (2017)

B.Olaizola, L.M.Fraile, H.Mach, A.Poves, F.Nowacki, A.Aprahamian, J.A.Briz, J.Cal-Gonzalez, D.Ghita, U.Koster, W.Kurcewicz, S.R.Lesher, D.Pauwels, E.Picado, D.Radulov, G.S.Simpson, J.M.Udias

Search for shape-coexisting 0+ states in 66Ni from lifetime measurements

RADIOACTIVITY 66Co(β-)[from 66Mn -> 66Fe decay, 66Mn from U(p, F), E=1.4 GeV at ISOLDE-CERN facility using RILIS]; measured Eγ, half-life of an excited 0+ state by βγγ(t) method using LaBr3(Ce) crystals and two HPGe detectors for γ rays, and a fast plastic scintillator for beta particles. 66Ni; deduced levels, B(E2). Comparison with large-scale shell model calculations, and with previous experimental data.

doi: 10.1103/PhysRevC.95.061303
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2017OL08      J.Phys.(London) G44, 125103 (2017)

B.Olaizola, L.M.Fraile, H.Mach, A.Poves, A.Aprahamian, J.A.Briz, J.Cal-Gonzalez, D.Ghita, U.Koster, W.Kurcewicz, S.R.Lesher, D.Pauwels, E.Picado, D.Radulov, G.S.Simpson, J.M.Udias

Beta decay of 66Mn to the N = 40 nucleus 66Fe

RADIOACTIVITY 66Mn(β-), (β-n) [from U(p, X), E=1.4 GeV]; measured decay products, Eγ, Iγ; deduced 66Fe T1/2, γ-ray energies and intensities, B(E2), B(M1) limits. Comparison with shell model calculations.

doi: 10.1088/1361-6471/aa915e
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2017VE05      Phys.Rev. C 96, 034311 (2017)

V.Vedia, V.Paziy, L.M.Fraile, H.Mach, W.B.Walters, A.Aprahamian, C.Bernards, J.A.Briz, B.Bucher, C.J.Chiara, Z.Dlouhy, I.Gheorghe, D.Ghita, P.Hoff, J.Jolie, U.Koster, W.Kurcewicz, R.Lica, N.Marginean, R.Marginean, B.Olaizola, J.-M.Regis, M.Rudigier, T.Sava, G.S.Simpson, M.Stanoiu, L.Stroe

Search for the 73Ga ground-state doublet splitting in the β decay of 73Zn

RADIOACTIVITY 73Zn(β-)[from U(p, F), E=1.4 GeV]; measured Eγ, Iγ, βγ- and γγ-coin, half-life of 73Zn from γ-decay curves, level half-lives by fast-timing βγγ(t) technique using Resonance Ionization Laser Ion Source (RILIS) and magnetic high-resolution mass separator (HRS) at ISOLDE-CERN. 73Ga; deduced levels, ground state doublet, J, π, β feedings, logft, B(M1), B(E2). 73Zn(IT); measured Eγ, half-life of the isomer; deduced no evidence for a 42-keV transition from the isomer. Comparison with previous measurements, and with shell-model calculations. Systematics of level structure in 71,73,75Ga.

doi: 10.1103/PhysRevC.96.034311
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2016MA40      Eur.Phys.J. A 52, 172 (2016)

H.Mach, A.Lindroth, E.Ruchowska, J.Kvasil, B.Fogelberg, K.Gulda, A.J.Aas, M.J.G.Borge, I.S.Grant, E.Hagebo, W.Kurcewicz, T.Martinez, B.Rubio, J.F.Smith, K.Steffensen, J.L.Tain, O.Tengblad, T.F.Thorsteinsen

On the enhanced E1 transitions in the K = 3/2 parity doublet band in 223Ra

RADIOACTIVITY 223Fr(β-)[from 223Rn]; measured β-decay of (3/2)- and (5/2)- states (50 and 80 keV) Eγ, Iγ(t) using BaF2 crystal for timing and two Ge, Eβ, Iβ(t) using ΔE NE111A, βγ-coin; deduced time-delayed βγ(t) spectrum, T1/2, B(E1), B(E2), B(M1) for K=3/2 band states below 250 keV, intrinsic electric dipole moment D0; calculated T1/2, γ transition probabilities, B(E1), B(E2), B(M1), average electric dipole moment for 223,224Ra (and compared with available data for Ra isotopes), quadrupole and octupole vibration energies in 222,224Ra, structure of intrinsic states.

doi: 10.1140/epja/i2016-16172-4
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2016OL06      Phys.Rev. C 94, 054318 (2016)

B.Olaizola, H.Mach, L.M.Fraile, J.Benito, M.J.G.Borge, R.Boutami, P.A.Butler, Z.Dlouhy, H.O.U.Fynbo, P.Hoff, S.Hyldegaard, H.B.Jeppesen, A.Jokinen, C.Jollet, A.Korgul, U.Koster, Th.Kroll, W.Kurcewicz, F.Marechal, J.Mrazek, T.Nilsson, W.A.Plociennik, E.Ruchowska, R.Schuber, W.Schwerdtfeger, M.Sewtz, G.S.Simpson, M.Stanoiu, O.Tengblad, P.G.Thirolf, D.T.Yordanov

High-sensitivity study of levels in 30Al following β decay of 30Mg

RADIOACTIVITY 30Mg(β-), (β-n)[from U(p, F), E=1.4 GeV at CERN-ISOLDE]; measured Eγ, Iγ, Eβ, Iβ, βγ-, βγγ-coin, level half-lives by βγγ(t) fast timing method. 30Al; deduced levels, J, π, B(M1). Comparisons with shell-model calculations.

doi: 10.1103/PhysRevC.94.054318
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2015BU15      Phys.Rev. C 92, 064312 (2015)

B.Bucher, H.Mach, A.Aprahamian, G.S.Simpson, J.Rissanen, D.G.Ghita, B.Olaizola, W.Kurcewicz, J.Aysto, I.Bentley, T.Eronen, L.M.Fraile, A.Jokinen, P.Karvonen, I.D.Moore, H.Penttila, M.Reponen, E.Ruchowska, A.Saastamoinen, M.K.Smith, C.Weber

New lifetime measurements in 109Pd and the onset of deformation at N=60

RADIOACTIVITY 109Rh(β-)[from U(p, F), E=30 MeV at IGISOL facility of University of Jyvaskyla]; measured Eγ, Iγ, γγ-, βγγ-coin, level half-lives by fast timing βγγ(t) technique. 109Pd; deduced levels, J, π, configuration, B(M1), B(E2), B(E1); discussed strong pn interaction between πg9/2 and νg7/2 valence nucleons. Systematics of band structures, (d, p) and (d, t) spectroscopic strengths in 101,103,105,107,109,111Pd. Systematics of 7/2+ and 5/2+ states in odd-A Pd, Rh and Ag isotopes.

doi: 10.1103/PhysRevC.92.064312
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2014LI32      Phys.Rev. C 90, 014320 (2014)

R.Lica, N.Marginean, D.G.Ghita, H.Mach, L.M.Fraile, G.S.Simpson, A.Aprahamian, C.Bernards, J.A.Briz, B.Bucher, C.J.Chiara, Z.Dlouhy, I.Gheorghe, P.Hoff, J.Jolie, U.Koster, W.Kurcewicz, R.Marginean, B.Olaizola, V.Paziy, J.M.Regis, M.Rudigier, T.Sava, M.Stanoiu, L.Stroe, W.B.Walters

Low-lying isomeric states in 80Ga from the β- decay of 80Zn

RADIOACTIVITY 80Zn(β-)[from U(p, X), E=1.4 GeV]; measured Eγ, Iγ, γγ-, βγ-coin, half-life of 708-keV level in 80Zn by βγγ(t) at ISOLDE-CERN facility. 80Ga; deduced levels, ordering of the ground state and long-lived isomer, J, π, conversion coefficient, multipolarities, β feedings, logft, reduced transition probabilities. Comparison with shell model calculations using jj44bpn and JUN45 interactions.

doi: 10.1103/PhysRevC.90.014320
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2013DE20      Phys.Rev. C 87, 067303 (2013)

H.De Witte, S.Eeckhaudt, A.N.Andreyev, I.N.Borzov, J.Cederkall, A.De Smet, D.V.Fedorov, V.N.Fedoseyev, S.Franchoo, M.Gorska, H.Grawe, G.Huber, M.Huyse, Z.Janas, U.Koester, W.Kurcewicz, J.Kurpeta, A.Plochocki, K.Van de Vel, P.Van Duppen, L.Weissman

β- decay of the neutron-rich isotope 215Pb

RADIOACTIVITY 215Pb(β-)[from 238U(p, X), E=1.4 GeV]; measured Eβ, Eγ, Iγ, βγ-, γγ-coin, half-life of 215Pb g.s., conversion coefficient. 215Bi; deduced levels, J, π, β feedings, logft, multipolarity. 215Pb beam produced using resonant laser ionization (RILIS) and mass separator at ISOLDE-CERN facility. Systematics of lowest 7/2- level energies in odd-A Bi nuclei.

doi: 10.1103/PhysRevC.87.067303
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2013OL06      Phys.Rev. C 88, 044306 (2013)

B.Olaizola, L.M.Fraile, H.Mach, A.Aprahamian, J.A.Briz, J.Cal-Gonzalez, D.Ghita, U.Koster, W.Kurcewicz, S.R.Lesher, D.Pauwels, E.Picado, A.Poves, D.Radulov, G.S.Simpson, J.M.Udias

β- decay of 65Mn to 65Fe

RADIOACTIVITY 65Mn(β-), (β-n)[from U(p, X), E=1.4 GeV, RILIS]; measured Eγ, Iγ, Eβ, βγ-, βγγ-, γγ-coin, βγγ(t), half-life of 65Mn ground state, half-lives of 65Fe levels by fast timing, β-delayed neutron emission probability Pn at ISOLDE, CERN facility. 65Fe; deduced levels, isomer, J, π, multipolarity, B(M1), B(E1), B(E2), β feedings, logft. 64Fe, 64Co, 65mFe, 65Ni(β-); measured Eγ, Iγ of selected γ rays to deduce ground state β feeding in the decay of 65Mn to 65Fe. Comparison with shell-model calculations. 64Fe; deduced levels populated by β-n decay mode. Systematics of energies and B(E2) values of first 2+ states in Z=24, 26, 28, N=34-46 nuclei.

doi: 10.1103/PhysRevC.88.044306
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2010RU09      Eur.Phys.J. A 45, 1 (2010)

E.Ruchowska, W.A.Plociennik, H.Mach, K.Gulda, B.Fogelberg, H.Gausemel, L.M.Fraile, W.Kurcewicz, K.Mezilev, M.Sanchez-Vega

Quenching of the E1 strength in 149Nd

RADIOACTIVITY 149Pr(β-) [from 235U(n, F), E=thermal and subsequent decays]; measured Eγ, Iγ(t), γγ-coin, βγ-coin. 149Nd; deduced levels, J , π, isomeric transition, T1/2, band structure, B(E1), nuclear dipole moment; calculated deformation.

doi: 10.1140/epja/i2010-10979-9
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2008BO29      Nucl.Phys. A811, 244 (2008)

R.Boutami, M.J.G.Borge, H.Mach, W.Kurcewicz, L.M.Fraile, K.Gulda, A.J.Aas, L.M.Garcia-Raffi, G.Lovhoiden, T.Martinez, B.Rubio, J.L.Tain, O.Tengblad

Nuclear structure of 231Ac

RADIOACTIVITY 231Fr, 231Ra(β-) [from 238U(p, X), E=1 GeV and subsequent mass separation]; measured Eγ, Iγ, Eβ, γγ-, βγ-coin, T1/2; deduced log ft. 231Ac deduced levels, J, π, ICC, multipolarities, B(E1), B(M1), T1/2. Mini-orange spectrometer. Advanced Time Delayed βγγ(t) method.

doi: 10.1016/j.nuclphysa.2008.08.005
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2008SM01      Phys.Rev. C 77, 014309 (2008)

D.L.Smith, H.Mach, H.Penttila, H.Bradley, J.Aysto, V.-V.Elomaa, T.Eronen, D.G.Ghita, J.Hakala, M.Hauth, A.Jokinen, P.Karvonen, T.Kessler, W.Kurcewicz, H.Lehmann, I.D.Moore, J.Nyberg, S.Rahaman, J.Rissanen, J.Ronkainen, P.Ronkanen, A.Saastamoinen, T.Sonoda, O.Steczkiewicz, C.Weber

Lifetime measurements of the negative-parity 7- and 8- states in 122Cd

RADIOACTIVITY 122Ag(β-) [from 238U(p, F), E=50 MeV]; measured Eγ, Iγ, γγ-coin, lifetimes. 122Cd; deduced levels, B(M1), B(E1), B(E2), half-lives using Advanced Time-delayed βγγ(t) method. Comparison with 124Sn, 126Te.

doi: 10.1103/PhysRevC.77.014309
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2007BO48      Eur.Phys.J. Special Topics 150, 87 (2007)

R.Boutami, M.J.G.Borge, H.Mach, L.M.Fraile, K.Gulda, A.J.Aas, L.M.Garcia-Raffi, E.Hagebo, W.Kurcewicz, G.Lovhoiden, T.Martinez, B.Rubio, J.L.Tain, O.Tengblad

Structure of 231Ac: Measurements of level half-lives

RADIOACTIVITY 231Ra(β-) [from U(p, X), E=1 GeV]; measured Eγ, Iγ, γγ-coin, conversion electrons. 231Ac; deduced level energies, lifetimes.

doi: 10.1140/epjst/e2007-00273-9
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2007KL02      Phys.Rev. C 76, 014311 (2007)

B.Klos, A.Trzcinska, J.Jastrzebski, T.Czosnyka, M.Kisielinski, P.Lubinski, P.Napiorkowski, L.Pienkowski, F.J.Hartmann, B.Ketzer, P.Ring, R.Schmidt, T.von Egidy, R.Smolanczuk, S.Wycech, K.Gulda, W.Kurcewicz, E.Widmann, B.A.Brown

Neutron density distributions from antiprotonic 208Pb and 209Bi atoms

NUCLEAR REACTIONS 208Pb, 209Bi(p-bar, X-ray), E at 106 MeV/c; measured x-ray cascade from antiprotonic atoms. Deduced neutron densities and rms radii.

doi: 10.1103/PhysRevC.76.014311
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2007KO66      Eur.Phys.J. A 32, 25 (2007)

A.Korgul, H.Mach, B.A.Brown, A.Covello, A.Gargano, B.Fogelberg, W.Kurcewicz, E.Werner-Malento, R.Orlandi, M.Sawicka

On the unusual properties of the 282 keV state in 135Sb

RADIOACTIVITY 135Sn(β-) [from 235U(n, X), E=thermal]; measured Eγ, Iγ, βγ, γγ-coinc. 135Sb deduced T1/2, B(M1), B(E2).

doi: 10.1140/epja/i2007-10363-0
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2007KU30      Phys.Rev. C 76, 054320 (2007)

J.Kurcewicz, W.Czarnacki, M.Karny, M.Kasztelan, M.Kisielinski, A.Korgul, W.Kurcewicz, J.Kurpeta, S.Lewandowski, P.Majorkiewicz, H.Penttila, A.Plochocki, B.Roussiere, O.Steczkiewicz, A.Wojtasiewicz

Identification of an α-decaying (9-) isomer in 216Fr

RADIOACTIVITY 220Ac, 216Fr, 212At (α) [from 209Bi(14N, F), E=5.6 MeV/nucleon]; measured α-spectra. 212At, 216Fr; deduced levels, J, π, half-lives. 216Fr; deduced Eα, Qα, excitation energies, mass excess.

doi: 10.1103/PhysRevC.76.054320
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2007MA40      Acta Phys.Pol. B38, 1213 (2007)

H.Mach, L.M.Fraile, O.Arndt, A.Blazhev, N.Boelaert, M.J.G.Borge, R.Boutami, H.Bradley, N.Braun, B.A.Brown, P.A.Butler, A.Covello, Z.Dlouhy, C.Fransen, H.O.U.Fynbo, A.Gargano, Ch.Hinke, P.Hoff, A.Joinet, A.Jokinen, J.Jolie, U.Koster, A.Korgul, K.-L.Kratz, T.Kroll, W.Kurcewicz, J.Nyberg, E.-M.Reillo, E.Ruchowska, W.Schwerdtfeger, G.S.Simpson, M.Stanoiu, O.Tengblad, P.G.Thirolf, W.B.Walters

The Single-Particle and Collective Features in the Nuclei Just Above 132Sn

RADIOACTIVITY 136Sn(β-); measured Eγ, Iγ, γγ-coinc. 135Sb deduced levels, B(E2).


2007WH01      Phys.Rev. C 76, 057303 (2007)

E.R.White, H.Mach, L.M.Fraile, U.Koster, O.Arndt, A.Blazhev, N.Boelaert, M.J.G.Borge, R.Boutami, H.Bradley, N.Braun, Z.Dlouhy, C.Fransen, H.O.U.Fynbo, Ch.Hinke, P.Hoff, A.Joinet, A.Jokinen, J.Jolie, A.Korgul, K.-L.Kratz, T.Kroll, W.Kurcewicz, J.Nyberg, E.-M.Reillo, E.Ruchowska, W.Schwerdtfeger, G.S.Simpson, M.Stanoiu, O.Tengblad, P.G.Thirolf, V.Ugryumov, W.B.Walters

Lifetime measurement of the 167.1 keV state in 41Ar

RADIOACTIVITY 41Cl(β-) [from U(p, X), E=1.4 GeV]; measured Eγ, Iγ, γγ-coin, βγγ-coin, βγ(t). 41Ar; measured half-lives of isomeric states; deduced levels, J, π, multipolarities, B(E2), B(M1).

doi: 10.1103/PhysRevC.76.057303
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2006BO33      Phys.Scr. T125, 180 (2006)

M.J.T.Borge, R.Boutami, L.M.Fraile, K.Gulda, W.Kurcewicz, H.Mach, T.Martinez, B.Rubio, O.Tengblad, and for the IS322 Collaboration

Beta decay half-life of 231Ra

RADIOACTIVITY 231Ra(β-) [from U(p, X)]; measured Eγ, Iγ, T1/2.

doi: 10.1088/0031-8949/2006/T125/040
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2006RU07      Phys.Rev. C 73, 044326 (2006)

E.Ruchowska, W.A.Plociennik, J.Zylicz, H.Mach, J.Kvasil, A.Algora, N.Amzal, T.Back, M.G.Borge, R.Boutami, P.A.Butler, J.Cederkall, B.Cederwall, B.Fogelberg, L.M.Fraile, H.O.U.Fynbo, E.Hagebo, P.Hoff, H.Gausemel, A.Jungclaus, R.Kaczarowski, A.Kerek, W.Kurcewicz, K.Lagergren, E.Nacher, B.Rubio, A.Syntfeld, O.Tengblad, A.A.Wasilewski, L.Weissman

Nuclear structure of 229Th

RADIOACTIVITY 229Ac(β-) [from 238U(p, X) and subsequent decay]; measured prompt and delayed Eγ, Iγ, βγ-, γγ-coin. 229Th deduced levels, J, π, T1/2, transition probabilities, rotational band features. Potential energy surface calculations, quasiparticle-plus-phonon model calculations.

doi: 10.1103/PhysRevC.73.044326
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2005DE01      Eur.Phys.J. A 23, 243 (2005)

H.De Witte, A.N.Andreyev, S.Dean, S.Franchoo, M.Huyse, O.Ivanov, U.Koster, W.Kurcewicz, J.Kurpeta, A.Plochocki, K.Van de Vel, J.Van de Walle, P.Van Duppen

Alpha-decay of neutron-deficient 200Fr and heavier neighbours

RADIOACTIVITY 200,201,203,205Fr, 196,197,199,201At, 193Bi(α) [from Th(p, X) and subsequent decay]; measured Eα, T1/2. 201Fr, 197At, 193Bi, 189Tl deduced levels, J, π.

doi: 10.1140/epja/i2004-10077-9
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2005KO40      Eur.Phys.J. A 25, Supplement 1, 123 (2005)

A.Korgul, H.Mach, B.A.Brown, A.Covello, A.Gargano, B.Fogelberg, R.Schuber, W.Kurcewicz, E.Werner-Malento, R.Orlandi, M.Sawicka

On the structure of the anomalously low-lying 5/2+ state of 135Sb

RADIOACTIVITY 135Sn(β-) [from 235U(n, F), E=thermal]; measured Eγ, Iγ, βγ-coin following decay of mass-separated sources. 135Sb deduced levels, J, π, T1/2, B(M1), configurations. Comparison with shell model calculations.

doi: 10.1140/epjad/i2005-06-040-2
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2005MA96      Eur.Phys.J. A 25, Supplement 1, 105 (2005)

H.Mach, L.M.Fraile, O.Tengblad, R.Boutami, C.Jollet, W.A.Plociennik, D.T.Yordanov, M.Stanoiu, M.J.G.Borge, P.A.Butler, J.Cederkall, Ph.Dessagne, B.Fogelberg, H.Fynbo, P.Hoff, A.Jokinen, A.Korgul, U.Koster, W.Kurcewicz, F.Marechal, T.Motobayashi, J.Mrazek, G.Neyens, T.Nilsson, S.Pedersen, A.Poves, B.Rubio, E.Ruchowska, and the ISOLDE Collaboration

New structure information on 30Mg, 31Mg and 32Mg

RADIOACTIVITY 30,31,32Na(β-); 31,32Na(β-n); measured Eγ, Iγ, γγ-, βγ-coin. 30,31,32Mg deduced levels T1/2. Ultra-fast timing techniques.

doi: 10.1140/epjad/i2005-06-159-0
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2005SY01      Eur.Phys.J. A 23, 481 (2005)

A.Syntfeld, H.Mach, W.Kurcewicz, B.Fogelberg, N.Amzal, J.Galy, K.Gulda, A.Korgul, A.Lindroth, W.A.Plociennik, M.Sanchez-Vega, W.Urban

The β-decay of 147Cs to 147Ba

RADIOACTIVITY 147Cs(β-) [from 235U(n, F)]; measured β-delayed Eγ, Iγ, γγ-, (X-ray)γ-coin, T1/2. 147Ba deduced levels, J, π, T1/2, B(M1), B(E2).

doi: 10.1140/epja/i2004-10112-y
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2004DE16      Phys.Rev. C 69, 044305 (2004)

H.De Witte, A.N.Andreyev, I.N.Borzov, E.Caurier, J.Cederkall, A.De Smet, S.Eeckhaudt, D.V.Fedorov, V.N.Fedosseev, S.Franchoo, M.Gorska, H.Grawe, G.Huber, M.Huyse, Z.Janas, U.Koster, W.Kurcewicz, J.Kurpeta, A.Plochocki, K.Van de Vel, P.Van Duppen, L.Weissman

First observation of the β decay of neutron-rich 218Bi by the pulsed-release technique and resonant laser ionization

RADIOACTIVITY 218Bi(β-) [from U(p, X)]; measured Eγ, Iγ, βγ-coin, T1/2. 218Po deduced levels, J, π. Comparison with model predictions. Pulsed-release technique, resonant laser ionization.

doi: 10.1103/PhysRevC.69.044305
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2004FR14      Nucl.Phys. A734, 449 (2004)

S.Franchoo, H.De Witte, A.N.Andreyev, J.Cederkall, S.Dean, A.De Smet, S.Eeckhaudt, D.V.Fedorov, V.N.Fedosseev, M.Gorska, G.Huber, M.Huyse, Z.Janas, U.Koster, W.Kurcewicz, J.Kurpeta, P.Mayet, A.Plochocki, K.Van de Vel, P.Van Duppen, L.Weissman, and the ISOLDE Collaboration

Beta-decay measurements of neutron-rich thallium, lead, and bismuth by means of resonant laser ionisation

RADIOACTIVITY 218Bi(β-); measured Eγ, Iγ, βγ-coin. Resonant laser ionization.

doi: 10.1016/j.nuclphysa.2004.01.083
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2004KL06      Phys.Rev. C 69, 044311 (2004)

B.Klos, S.Wycech, A.Trzcinska, J.Jastrzebski, T.Czosnyka, M.Kisielinski, P.Lubinski, P.Napiorkowski, L.Pienkowski, F.J.Hartmann, B.Ketzer, R.Schmidt, T.von Egidy, J.Cugnon, K.Gulda, W.Kurcewicz, E.Widmann

Strong interaction and E2 effect in even-A antiprotonic Te atoms

ATOMIC PHYSICS 122,124,126,128,130Te(p-bar, X), E at 106, 300 MeV/c; measured X-ray spectra from antiprotonic atoms; deduced level widths and shifts, nuclear resonance effect. 122,124,126,128,130Te deduced relative neutron, proton radii, neutron density at periphery.

doi: 10.1103/PhysRevC.69.044311
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2004SY01      Eur.Phys.J. A 20, 359 (2004)

A.Syntfeld, H.Mach, W.Plociennik, W.Kurcewicz, B.Fogelberg

First structure information on the exotic 149La from the β--decay of 149Ba

RADIOACTIVITY 149Ba(β-) [from 235U(n, F)]; measured Eγ, Iγ, γγ-, (X-ray)γ-coin. 149La deduced levels, J, π, configurations, deformation. Mass separator.

doi: 10.1140/epja/i2003-10192-1
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2004WO17      Nucl.Phys. A746, 663c (2004)

A.Wojtasiewicz, G.Canchel, A.Emsallem, M.Gierlik, Z.Janas, M.Kisielinski, W.Kurcewicz, J.Kurpeta, H.Lefort, S.Lewandowski, H.Penttila, A.Plochocki, E.Roeckl, B.Roussiere, S.Sidor, A.Syntfeld

Investigation of a gas catcher/ion guide system at the Warsaw cyclotron

doi: 10.1016/j.nuclphysa.2004.09.047
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2003KU25      Eur.Phys.J. A 18, 5 (2003)

J.Kurpeta, A.Plochocki, A.N.Andreyev, J.Aysto, A.De Smet, H.De Witte, A.-H.Evensen, V.Fedoseyev, S.Franchoo, M.Gorska, M.Huhta, M.Huyse, Z.Janas, A.Jokinen, M.Karny, E.Kugler, W.Kurcewicz, U.Koster, J.Lettry, A.Nieminen, K.Partes, M.Ramdhane, H.L.Ravn, K.Rykaczewski, J.Szerypo, K.Van de Vel, P.Van Duppen, L.Weissman, G.Walter, A.Wohr, and the IS387 and ISOLDE Collaborations

The decay of the new neutron-rich isotope 217Bi

RADIOACTIVITY 217Bi(β-) [from 232Th, 238U(p, X)]; measured Eγ, Iγ, βγ-coin, T1/2, Qβ; deduced log ft. 217Po deduced levels. 217Po(α) [from 217Bi decay]; measured Eα, T1/2. Mass separator.

doi: 10.1140/epja/i2003-10065-7
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2003KU26      Eur.Phys.J. A 18, 31 (2003)

J.Kurpeta, A.Plochocki, A.N.Andreyev, J.Aysto, A.De Smet, H.De Witte, A.-H.Evensen, V.Fedoseyev, S.Franchoo, M.Gorska, H.Grawe, M.Huhta, M.Huyse, Z.Janas, A.Jokinen, M.Karny, E.Kugler, W.Kurcewicz, U.Koster, J.Lettry, A.Nieminen, K.Partes, M.Ramdhane, H.L.Ravn, K.Rykaczewski, J.Szerypo, K.Van de Vel, P.Van Duppen, L.Weissman, G.Walter, A.Wohr, and the IS387 and ISOLDE Collaborations

Isomeric and ground-state decay of 215Bi

RADIOACTIVITY 215mBi(IT), (β-); 215Bi(β-) [from 232Th, 238U(p, X)]; measured Eγ, Iγ, X-ray spectra, γγ-, βγ-, (X-ray)γ-coin; deduced log ft. 215Bi deduced levels, J, π, configurations, ICC, high-spin isomer T1/2. 215Po deduced levels, J, π, configurations. Mass separator.

doi: 10.1140/epja/i2003-10066-6
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2003SC13      Phys.Rev. C 67, 044308 (2003)

R.Schmidt, A.Trzcinska, T.Czosnyka, T.von Egidy, K.Gulda, F.J.Hartmann, J.Jastrzebski, B.Ketzer, M.Kisielinski, B.Klos, W.Kurcewicz, P.Lubinski, P.Napiorkowski, L.Pienkowski, R.Smolanczuk, E.Widmann, S.Wycech

Nucleon density in the nuclear periphery determined with antiprotonic x rays: Cadmium and tin isotopes

NUCLEAR REACTIONS 106,116Cd, 112,116,120,124Sn(p-bar, X), E at rest; measured antiprotonic x-ray spectra. 106,116Cd, 112,116,120,124Sn deduced nucleon density distributions, radii. Comparison with previous data and model predictions.

ATOMIC PHYSICS 106,116Cd, 112,116,120,124Sn; measured antiprotonic x-ray spectra; deduced atomic level widths and shifts.

doi: 10.1103/PhysRevC.67.044308
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2003SY01      Phys.Rev. C 68, 024304 (2003)

A.Syntfeld, H.Mach, W.Kurcewicz, B.Fogelberg, W.Plociennik, E.Ruchowska

Search for quenching of the electric dipole moment D0 in 149Ce

RADIOACTIVITY 149La(β-) [from 235U(n, F)]; measured β-delayed Eγ, Iγ(t). 149Ce deduced levels T1/2, B(E1), electric dipole moments. Mass-separated source.

doi: 10.1103/PhysRevC.68.024304
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2002AN15      Eur.Phys.J. A 14, 63 (2002)

A.N.Andreyev, K.Van de Vel, A.Barzakh, A.De Smet, H.De Witte, D.V.Fedorov, V.N.Fedoseyev, S.Franchoo, M.Gorska, M.Huyse, Z.Janas, U.Koster, W.Kurcewicz, J.Kurpeta, V.I.Mishin, K.Partes, A.Plochocki, P.Van Duppen, L.Weissman

Nuclear Spins, Magnetic Moments and α-Decay Spectroscopy of Long-Lived Isomeric States in 185Pb

RADIOACTIVITY 185mPb(α) [from U(p, X)]; measured Eα, Eγ, αγ-coin, T1/2. 181Hg deduced levels, possible J, π. On-line mass separator.

NUCLEAR MOMENTS 185mPb; measured hfs; deduced isomeric states J, π. Resonance ionization laser ion source.

doi: 10.1007/s10050-002-8790-5
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2002GU15      Nucl.Phys. A703, 45 (2002)

K.Gulda, W.Kurcewicz, A.J.Aas, M.J.G.Borge, D.G.Burke, B.Fogelberg, I.S.Grant, E.Hagebo, N.Kaffrell, J.Kvasil, G.Lovhoiden, H.Mach, A.Mackova, T.Martinez, G.Nyman, B.Rubio, J.L.Tain, O.Tengblad, T.F.Thorsteinsen, and the ISOLDE Collaboration

The Nuclear Structure of 229Th

RADIOACTIVITY 229Ac(β-) [from 232Th(p, 4p) and 238U(p, 6p4n) and subsequent decay]; measured Eγ, Iγ, E(ce), I(ce), T1/2, βγ(t), (ce)γ-, γγ-coin. 229Th deduced levels, J, π, ICC, multipolarities, rotational bands, B(E1), B(E2), B(M1), dipole moments. Mini-orange spectrometer, advanced fast-timing techniques. Comparison with quasiparticle-phonon model predictions.

doi: 10.1016/S0375-9474(01)01456-7
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2002HA01      Phys.Rev. C65, 014306 (2002)

F.J.Hartmann, R.Schmidt, B.Ketzer, T.von Egidy, S.Wycech, R.Smolanczuk, T.Czosnyka, J.Jastrzebski, M.Kisielinski, P.Lubinski, P.Napiorkowski, L.Pienkowski, A.Trzcinska, B.Klos, K.Gulda, W.Kurcewicz, E.Widmann

Nucleon Density in the Nuclear Periphery Determined with Antiprotonic X Rays: Calcium isotopes

ATOMIC PHYSICS 16O, 40,42,43,44,48Ca(p-bar, X), E at rest; measured antiprotonic X-ray spectra; deduced level widths. 40,42,43,44,48Ca deduced neutron density distribution features.

NUCLEAR REACTIONS 16O, 40,42,43,44,48Ca(p-bar, X), E at rest; measured antiprotonic X-ray spectra; deduced level widths. 40,42,43,44,48Ca deduced neutron density distribution features.

doi: 10.1103/PhysRevC.65.014306
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2002KO53      Eur.Phys.J. A 15, 181 (2002)

A.Korgul, H.Mach, B.Fogelberg, W.Urban, W.Kurcewicz, T.Rzaca-Urban, P.Hoff, H.Gausemel, J.Galy, J.L.Durell, W.R.Phillips, A.G.Smith, B.J.Varley, N.Schulz, I.Ahmad, L.R.Morss, M.Gorska, V.I.Isakov, K.I.Erokhina, J.Blomqvist, F.Andreozzi, F.Coraggio, A.Covello, A.Gargano

The neutron and proton two-particle nucleus 134Sb: New low-spin states observed in the decay of 134Sn and an estimate of the energy of the 7- isomer

RADIOACTIVITY 134Sn(β-) [from 238U(n, F)]; measured Eγ, Iγ, γγ-, βγ-coin. 134Sb deduced levels, possible J, π, configurations. Mass separator. Comparisons with model predictions.

doi: 10.1140/epja/i2001-10250-8
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2002LU12      Phys.Rev. C66, 044616 (2002)

P.Lubinski, A.Grochulska, T.von Egidy, K.Gulda, F.J.Hartmann, J.Jastrzebski, W.Kurcewicz, L.Pienkowski, A.Stolarz, A.Trzcinska

Gold fragmentation induced by stopped antiprotons

NUCLEAR REACTIONS 197Au(p-bar, X), E=0-6.5 MeV; measured fragment isotopic yields; deduced mass and charge distributions, reaction mechanism features. Comparisons with previous results.

doi: 10.1103/PhysRevC.66.044616
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2002SY01      Nucl.Phys. A710, 221 (2002)

A.Syntfeld, H.Mach, R.Kaczarowski, W.Kurcewicz, W.Plociennik, W.Urban, B.Fogelberg, P.Hoff

Study of 149Ce levels populated in the β- decay of 149La and signature splitting of the neutron i13/2 band

RADIOACTIVITY 149La(β-) [from 235U(n, F)]; measured Eγ, Iγ, γγ-coin. 149Ce deduced levels, J, π, ICC, rotational bands, signature splitting. Comparison with model predictions.

doi: 10.1016/S0375-9474(02)01132-6
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2001BO34      Nucl.Phys. A690, 227c (2001)

M.J.G.Borge, L.M.Fraile, W.Kurcewicz, H.Mach, for the IS322 Collaboration

Octupole Correlations Beyond the Island of Deformation Centered at A = 225

RADIOACTIVITY 231Fr(β-); analyzed data. 231Ra deduced transitions B(E1), octupole correlation features. Level systematics in neighboring nuclides discussed.

doi: 10.1016/S0375-9474(01)01046-6
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2001FR05      Nucl.Phys. A686, 71 (2001)

L.M.Fraile, M.J.G.Borge, H.Mach, R.Boutami, A.J.Aas, B.Fogelberg, L.M.Garcia-Raffi, I.S.Grant, K.Gulda, E.Hagebo, W.Kurcewicz, J.Kvasil, M.J.Lopez, G.Lovhoiden, T.Martinez, B.Rubio, J.L.Tain, O.Tengblad, and the ISOLDE Collaboration

Persistence of Octupole Correlations in 231Ra

RADIOACTIVITY 231Fr(β-) [from 238U(p, 2n6p)]; measured Eγ, Iγ, E(ce), I(ce), γγ-, (ce)γ-coin, T1/2. 231Ra deduced levels, J, π, ICC, multipolarities, rotational bands, B(E1), B(E2). Quasiparticle-plus-phonon model, BaF2 detectors, mini-orange spectrometer.

doi: 10.1016/S0375-9474(00)00572-8
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2001KA50      Acta Phys.Pol. B32, 2485 (2001)

R.Kaczarowski, W.Plociennik, A.Syntfeld, H.Mach, W.Kurcewicz, B.Fogelberg, P.Hoff

Total Routhian Surface Calculations for Neutron-Rich 149Ce

NUCLEAR STRUCTURE 149Ce; calculated total Routhian surfaces, angular momentum vs rotational frequency. Comparison with data.


2001KO45      Phys.Rev. C64, 021302 (2001)

A.Korgul, H.Mach, B.Fogelberg, W.Urban, W.Kurcewicz, V.I.Isakov

Structure Information on the r-Process Nucleus 135Sn

RADIOACTIVITY 135Sn(β-) [from 238U(n, F)]; measured Eγ, Iγ, γγ-, βγ-coin, T1/2. 135Sb deduced levels, possible J, π. Online fission-product mass separator. Astrophysical r-process and level systematics in neighboring nuclides discussed. Comparisons with model predictions.

doi: 10.1103/PhysRevC.64.021302
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2001TR23      Nucl.Phys. A692, 176c (2001)

A.Trzcinska, J.Jastrzebski, T.Czosnyka, T.von Egidy, K.Gulda, F.J.Hartmann, J.Iwanicki, B.Ketzer, M.Kisielinski, B.Klos, W.Kurcewicz, P.Lubinski, P.J.Napiorkowski, L.Pienkowski, R.Schmidt, E.Widmann

Information on Antiprotonic Atoms and the Nuclear Periphery from the PS209 Experiment

NUCLEAR STRUCTURE 48Ca, 112,116,120,124Sn, 208Pb; analyzed antiproton annihilation data; deduced neutron-to-proton density ratios.

ATOMIC PHYSICS 16O, 40,42,43,44,48Ca, 54,56,57,58Fe, 59Co, 58,60,62,64Ni, 90,96Zr, 106,116Cd, 112,116,120,124Sn, 122,124,126,128,130Te, 172,176Yb, 208Pb, 209Bi, 232Th, 238U; measured antiprotonic atoms strong interaction level widths, shifts.

doi: 10.1016/S0375-9474(01)01176-9
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2000HO32      Hyperfine Interactions 129, 141 (2000)

P.Hoff, P.Baumann, A.Huck, A.Knipper, G.Walter, G.Marguier, B.Fogelberg, A.Lindroth, H.Mach, M.Sanchez-Vega, R.B.E.Taylor, P.van Duppen, A.Jokinen, M.Lindroos, M.Ramdhane, W.Kurcewicz, B.Jonson, G.Nyman, Y.Jading, K.-L.Kratz, A.Wohr, G.Lovhoiden, T.F.Thorsteinsen, J.Blomqvist, and the ISOLDE Collaboration

Nuclear spectroscopy at 133Sn

RADIOACTIVITY 133,134In(β-), (β-n) [from 238U(p, F), E=1 GeV]; measured Eγ, Iγ, En, In, βγ-, γγ-, nγ-coin. 133Sn deduced levels, J, π, single particle levels and configurations. Comparisons with Shell Model calculations.

doi: 10.1023/A:1012661816716
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2000KU42      Hyperfine Interactions 129, 175 (2000)

W.Kurcewicz

Octupole deformation in the actinide region

NUCLEAR STRUCTURE 227Fr, 227,228,229Ra, 229,231Th; A=223-243; analyzed levels, J, π, octupole deformation parameters, transition probabilities, band structures and configurations.

doi: 10.1023/A:1012609832646
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2000UR05      Phys.Rev. C62, 027301 (2000)

W.Urban, W.Kurcewicz, A.Korgul, P.J.Daly, P.Bhattacharyya, C.T.Zhang, J.L.Durell, M.J.Leddy, M.A.Jones, W.R.Phillips, A.G.Smith, B.J.Varley, M.Bentaleb, E.Lubkiewicz, N.Schulz, I.Ahmad, L.R.Morss, J.Blomqvist

Medium-Spin Structure of Single Valence-Proton Nucleus 133Sb

RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin. 133Sb deduced levels, J, π, configurations, isomeric states. Eurogam2 array, shell model calculations.

doi: 10.1103/PhysRevC.62.027301
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2000VO14      Eur.Phys.J. A 8, 197 (2000)

T.von Egidy, P.Figuera, J.Galin, F.Goldenbaum, Ye.S.Golubeva, M.Hasinoff, D.Hilscher, A.S.Iljinov, U.Jahnke, M.Krause, W.Kurcewicz, X.Ledoux, B.Lott, L.Maier, M.Manrique de Lara, G.Pausch, L.Pienkowski, B.Quednau, W.Schott, W.U.Schroder, J.Toke

Neutrons Produced by 1.22 GeV Antiproton Interactions with Nuclei

NUCLEAR REACTIONS Al, Cu, Ag, Ho, Ta, Au, Pb, Bi, U(p-bar, X), E=1.22 GeV; measured neutron production σ(En, θ); deduced fast and evaporated neutron multiplicities, source temperatures, mass dependence effect.

doi: 10.1007/s100500070106
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1999AA03      Nucl.Phys. A654, 499 (1999)

A.J.Aas, H.Mach, J.Kvasil, M.J.G.Borge, B.Fogelberg, I.S.Grant, K.Gulda, E.Hagebo, P.Hoff, W.Kurcewicz, A.Lindroth, G.Lovhoiden, A.Machova, T.Martinez, B.Rubio, M.Sanchez-Vega, J.F.Smith, J.L.Tain, R.B.E.Taylor, O.Tengblad, T.F.Thorsteinsen, and the ISOLDE Collaboration

Quenched E1 Transition Rates in 231Th

RADIOACTIVITY 231Ac(β-); measured Eγ, Iγ, βγ-, γγ-coin, T1/2. 231Th deduced levels T1/2, B(λ), rotational bands. Fast-timing βγγ(t) method, quasiparticle-plus-phonon model.

doi: 10.1016/S0375-9474(99)00307-3
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1999FR33      Nucl.Phys. A657, 355 (1999)

L.M.Fraile, A.J.Aas, M.J.G.Borge, B.Fogelberg, L.M.Garcia-Raffi, I.S.Grant, K.Gulda, E.Hagebo, W.Kurcewicz, J.Kvasil, G.Lovhoiden, H.Mach, A.Mackova, T.Martinez, B.Rubio, J.L.Tain, A.G.Teijeiro, O.Tengblad, T.F.Thorsteinsen, and the ISOLDE Collaboration

Octupole Correlations in 229Ra

RADIOACTIVITY 229Fr(β-) [from 238U(p, 4n6p)]; measured Eγ, Iγ, I(ce), γγ-coin, T1/2. 229Ra deduced levels, J, π, ICC, multipolarities, rotational bands, B(λ). Ge, Si(Li) detectors, mini-orange spectrometer, quasiparticle-plus-phonon model.

doi: 10.1016/S0375-9474(99)00330-9
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1999HA41      Nucl.Phys. A655, 289c (1999)

F.J.Hartmann, T.Czosnyka, K.Gulda, J.Jastrzebski, B.Ketzer, M.Kisielinski, B.Klos, J.Kulpa, W.Kurcewicz, P.Lubinski, P.Napiorkowski, L.Pienkowski, R.Schmidt, R.Smolanczuk, A.Trzcinska, T.von Egidy, E.Widmann, S.Wycech

Antiprotonic Atoms as a Tool to Study the Nuclear Periphery

doi: 10.1016/S0375-9474(99)00215-8
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1999LO22      Nucl.Phys. (Supplement) A654, 803c (1999)

B.Lott, W.Bohne, J.Eades, T.von Egidy, P.Figuera, H.Fuchs, J.Galin, K.Gulda, F.Goldenbaum, D.Hilscher, U.Jahnke, J.Jastrzebski, W.Kurcewicz, M.Morjean, G.Pausch, A.Peghaire, L.Pienkowski, D.Polster, S.Proschitzki, B.Quednau, H.Rossner, S.Schmid, W.Schmid, P.Ziem

Formation and Decay of Nuclei Heated with High-Energy Antiprotons

NUCLEAR REACTIONS 197Au, 238U(p-bar, X), E=1.22 GeV; measured fission probability and intermediate mass fragment vs excitation energy. Absence of multifragmentation discussed.

doi: 10.1016/S0375-9474(00)88550-4
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1999NO05      Eur.Phys.J. A 6, 1 (1999)

A.Nowak, W.Urban, W.Kurcewicz, T.Rzaca-Urban, H.Mach, B.Fogelberg, J.L.Durell, M.J.Leddy, M.A.Jones, W.R.Phillips, A.G.Smith, B.J.Varley, M.Bentaleb, E.Lubkiewicz, N.Schulz, I.Ahmad, L.R.Morss

New Excitation Scheme of 139Cs

RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin. 139Xe(β-); measured Eγ, Iγ(t), γγ-coin. 139Cs deduced levels, possible J, π. Eurogam 2 aray. Level systematics in nearby isotones discussed.

doi: 10.1007/s100500050309
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Data from this article have been entered in the XUNDL database. For more information, click here.


1999PI10      Nucl.Phys. A655, 269c (1999)

L.Pienkowski, W.Bohne, J.Eades, T.von Egidy, P.Figuera, H.Fuchs, J.Galin, F.Goldenbaum, Ye.S.Golubeva, K.Gulda, D.Hilscher, A.S.Iljinov, U.Jahnke, J.Jastrzebski, W.Kurcewicz, B.Lott, M.Morjean, G.Pausch, A.Peghaire, D.Polster, S.Proschitzki, B.Quednau, H.Rossner, S.Schmid, W.Schmid, P.Ziem

Decay of Hot Nuclei Formed with Energetic Antiprotons (PS208)

NUCLEAR REACTIONS Ho, 197Au, U(p-bar, X), E=1.22 GeV; measured neutron multiplicity, fragment mass distributions, fission probability.

doi: 10.1016/S0375-9474(99)00212-2
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1999SC35      Phys.Rev. C60, 054309 (1999)

R.Schmidt, F.J.Hartmann, B.Ketzer, T.von Egidy, T.Czosnyka, J.Jastrzebski, M.Kisielinski, P.Lubinski, P.Napiorkowski, L.Pienkowski, A.Trzcinska, B.Klos, R.Smolanczuk, S.Wycech, W.Poschl, K.Gulda, W.Kurcewicz, E.Widmann

Composition of the Nuclear Periphery from Antiproton Absorption using Short-Lived Residual Nuclei

NUCLEAR REACTIONS 48Ca, 100Mo, 104Ru, 112,124Sn, 116Cd(p-bar, X), E at rest; measured Eγ, Iγ(t) following residual nucleus decay; deduced yields, isomeric ratios. 48Ca, 100Mo, 104Ru, 112,124Sn, 116Cd deduced peripheral neutron-to-proton ratios, effective scattering lengths of antiprotons. Comparison with Hartree-Fock-Bogoliubov calculations.

doi: 10.1103/PhysRevC.60.054309
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1999SC49      Hyperfine Interactions 118, 67 (1999)

R.Schmidt, T.Czosnyka, K.Gulda, F.J.Hartmann, J.Jastrzebski, B.Ketzer, B.Klos, J.Kulpa, W.Kurcewicz, P.Lubinski, P.Napiorkowski, L.Pienkowski, R.Smolanczuk, A.Trzcinska, T.von Egidy, E.Widmann, S.Wycech

Determination of the proton and neutron densities at the nuclear periphery with antiprotonic X-rays and (p-bar)-nucleus reactions

NUCLEAR REACTIONS 172,176Yb(p-bar, X), E at rest; measured X-ray spectra; deduced strong interaction shifts, widths. 172,176Yb deduced surface nucleon densities.

ATOMIC PHYSICS 172,176Yb(p-bar, X), E at rest; measured X-ray spectra; deduced strong interaction shifts, widths. 172,176Yb deduced surface nucleon densities.

doi: 10.1023/A:1012680402100
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1999UR01      Eur.Phys.J. A 5, 239 (1999)

W.Urban, W.Kurcewicz, A.Nowak, T.Rzaca-Urban, J.L.Durell, M.J.Leddy, M.A.Jones, W.R.Phillips, A.G.Smith, B.J.Varley, M.Bentaleb, E.Lubkiewicz, N.Schulz, J.Blomqvist, P.J.Daly, P.Bhattacharyya, C.T.Zhang, I.Ahmad, L.R.Morss

Neutron Single-Particle Energies in the 132Sn Region

RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin. 133Sn deduced transitions. 134Sb deduced levels, possible J, π, configurations. Eurogam 2 array.

doi: 10.1007/s100500050280
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Data from this article have been entered in the XUNDL database. For more information, click here.


1998LU05      Phys.Rev. C57, 2962 (1998)

P.Lubinski, J.Jastrzebski, A.Trzcinska, W.Kurcewicz, F.J.Hartmann, W.Schmid, T.von Egidy, R.Smolanczuk, S.Wycech

Composition of the Nuclear Periphery from Antiproton Absorption

NUCLEAR REACTIONS 45Sc, 56Fe, 58Ni, 96Zr, 96Ru, Cd, 106Cd, 128,130Te, Te, 144,154Sm, 148Nd, Eu, 160Gd, Yb, 176Yb, 206Pb, 232Th, 238U(p-bar, X), E at rest; measured Eγ, Iγ; deduced annihilation products yields, isomeric ratios, charge exchange processes. 58Ni, 96Ru, 96Zr, 106Cd, 128,130Te, 144,154Sm, 148Nd, 160Gd, 176Yb, 232Th, 238U deduced nuclear periphery neutron-to-proton density ratios, related features. Radiochemical methods. Shell model calculations.

doi: 10.1103/PhysRevC.57.2962
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1998SC43      Phys.Rev. C58, 3195 (1998)

R.Schmidt, F.J.Hartmann, T.von Egidy, T.Czosnyka, J.Iwanicki, J.Jastrzebski, M.Kisielinski, P.Lubinski, P.Napiorkowski, L.Pienkowski, A.Trzcinska, J.Kulpa, R.Smolanczuk, S.Wycech, B.Klos, K.Gulda, W.Kurcewicz, E.Widmann

Nucleon Density of 172Yb and 176Yb at the Nuclear Periphery Determined with Antiprotonic x Rays

NUCLEAR REACTIONS 172,176Yb(p-bar, X), E at rest; measured x-ray spectra; deduced widths and shifts due to strong interaction. 172,176Yb deduced nucleon density at nuclear periphery.

doi: 10.1103/PhysRevC.58.3195
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1997BU03      Nucl.Phys. A612, 91 (1997)

D.G.Burke, W.Kurcewicz, G.Lovhoiden, M.J.G.Borge, M.Cronqvist, H.Gabelmann, H.Gietz, P.Hill, N.Kaffrell, S.Mattsson, R.A.Naumann, K.Nybo, G.Nyman, J.Rogowski, G.L.Struble, T.F.Thorsteinsen, and the ISOLDE Collaboration

Search for Stable Octupole Deformation in 225Fr

RADIOACTIVITY 225Rn(β-) [from 232Th(p, 3n5p), mass separation]; measured Eγ, Iγ, I(ce), T1/2, γγ-, eγ-coin. 225Fr deduced levels, J, π, ICC, γ multipolarity, B(λ). Other data input.

NUCLEAR REACTIONS 226Ra(t, α), E=18 MeV; measured σ(Eα). 225Fr deduced levels, Q-value, ICC, γ-multipolarity, J, π, rotational bands, B(λ). Ge, Si(Li) detectors, mini-orange spectrometer, magnetic spectrograph, other data input.

doi: 10.1016/S0375-9474(96)00311-9
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1997KU20      Nucl.Phys. A621, 827 (1997)

W.Kurcewicz, I.S.Grant, K.Gulda, A.J.Aas, J.Billowes, M.J.G.Borge, D.G.Burke, P.A.Butler, J.F.C.Cocks, B.Fogelberg, S.J.Freeman, G.D.Jones, E.Hagebo, P.Hoff, J.Honsi, A.Lindroth, G.Lovhoiden, H.Mach, T.Martinez, R.A.Naumann, K.Nybo, G.Nyman, H.Ravn, B.Rubio, J.Simpson, A.G.Smith, J.F.Smith, K.Steffensen, J.L.Tain, O.Tengblad, T.F.Thorsteinsen, and the ISOLDE Collaboration

The Nuclear Structure of 227Fr

RADIOACTIVITY 227Rn(β-) [from 232Th(p, n5p), E=1 GeV]; measured Eγ, Iγ, I(ce), T1/2, βγγ(t), γγ-coin. 227Fr deduced levels, J, π, ICC, γ-multipolarity, rotational bands, B(λ). Ge, Si(Li), BGO, plastic, BaF2 detectors, mini-orange spectrometer.

doi: 10.1016/S0375-9474(97)00190-5
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1997SC27      Z.Phys. A359, 27 (1997)

S.Schmid, W.Schmid, F.J.Hartmann, T.von Egidy, D.Hilscher, W.Bohne, P.Figuera, F.Goldenbaum, U.Jahnke, D.Polster, P.Ziem, J.Galin, B.Lott, M.Morjean, A.Peghaire, B.Quednau, K.Gulda, J.Jastrzebski, W.Kurcewicz, L.Pienkowski, G.Pausch, J.Eades, A.S.Iljinov, M.V.Mebel

Probability of Fission Induced by 1.2 GeV Antiprotons

NUCLEAR REACTIONS 238U, 232Th, 209Bi, 197Au, 165Ho, 119Sn, Ag, 100Mo, 89Y, Cu(p-bar, F), E=1.2 GeV; measured annihilation σ, absolute fission probability vs fragment mass, neutron multiplicity, fission fragment folding angle distributions. Monte Carlo calculations. 4π neutron, particle detectors.

doi: 10.1007/s002180050363
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1996AA01      Nucl.Phys. A611, 281 (1996)

A.J.Aas, H.Mach, M.J.G.Borge, B.Fogelberg, I.S.Grant, K.Gulda, E.Hagebo, W.Kurcewicz, J.Kvasil, A.Lindroth, T.Martinez, D.Nosek, B.Rubio, J.F.Smith, K.Steffensen, J.L.Tain, O.Tengblad, T.F.Thorsteinsen, and the ISOLDE Collaboration

Enhanced and Quenched B(E1) Transition Rates between Parity Doublet Bands in 227Ra

RADIOACTIVITY 227Fr(β-); measured βγγ(t). 227Ra deduced levels, J, π, T1/2, K, B(λ), band structure. Quasiparticle-plus-phonon model, Coriolis coupling.

doi: 10.1016/S0375-9474(96)00312-0
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1996GO25      Phys.Rev.Lett. 77, 1230 (1996)

F.Goldenbaum, W.Bohne, J.Eades, T.von Egidy, P.Figuera, H.Fuchs, J.Galin, Ye.S.Golubeva, K.Gulda, D.Hilscher, A.S.Iljinov, U.Jahnke, J.Jastrzebski, W.Kurcewicz, B.Lott, M.Morjean, G.Pausch, A.Peghaire, L.Pienkowski, D.Polster, S.Proschitzki, B.Quednau, H.Rossner, S.Schmid, W.Schmid, P.Ziem

Heating of Nuclei with Energetic Antiprotons

NUCLEAR REACTIONS Cu, Ho, 197Au, U(p-bar, X), E=1.2 GeV; measured neutron multiplicity vs charged particle multiplicity, excitation energy distribution; deduced nuclei decay mechanism.

doi: 10.1103/PhysRevLett.77.1230
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1996HO16      Phys.Rev.Lett. 77, 1020 (1996)

P.Hoff, P.Baumann, A.Huck, A.Knipper, G.Walter, G.Marguier, B.Fogelberg, A.Lindroth, H.Mach, M.Sanchez-Vega, R.B.E.Taylor, P.Van Duppen, A.Jokinen, M.Lindroos, M.Ramdhane, W.Kurcewicz, B.Jonson, G.Nyman, Y.Jading, K.-L.Kratz, A.Wohr, G.Lovhoiden, T.F.Thorsteinsen, J.Blomqvist, and the ISOLDE Collaboration

Single-Neutron States in 133Sn

RADIOACTIVITY 133,134In(β-), (β-n) [from 238U(p, F), E=1 GeV]; measured Eγ, γγ-, βγ-coin, β-delayed neutron spectrum, T1/2, β-delayed neutron probability. 133Sn deduced levels, J, π, single particle levels, configurations. Comparison with Shell Model results.

doi: 10.1103/PhysRevLett.77.1020
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1995DA14      Z.Phys. A351, 225 (1995)

M.Daszewski, Z.Janas, W.Kurcewicz, B.Szweryn

The Q(EC) Dependence of Evidence for a 17-keV Neutrino from the 55Fe Radiative Decay

RADIOACTIVITY 55Fe(EC); measured internal bremsstrahlung spectra; deduced Q(EC), 17 keV neutrino implications.

doi: 10.1007/BF01289533
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1995PO04      Phys.Rev. C51, 1167 (1995)

D.Polster, D.Hilscher, H.Rossner, T.von Egidy, F.J.Hartmann, J.Hoffmann, W.Schmid, I.A.Pshenichnov, A.S.Iljinov, Ye.S.Golubeva, H.Machner, H.S.Plendl, A.Grochulska, J.Jastrzebski, W.Kurcewicz, P.Lubinski, J.Eades, S.Neumaier

Light Particle Emission Induced by Stopped Antiprotons in Nuclei: Energy dissipation and neutron-to-proton ratio

NUCLEAR REACTIONS C, 27Al, Si, Ca, Cu, 92,100Mo, Ag, Ho, Ta, 197Au, 209Bi, U(p-bar, X), E at rest; measured inclusive spectra, multipticities for X=π+, K+, n, p, d, t; deduced excitation energy, neutron to proton ratio. Intranuclear cascade calculations.

doi: 10.1103/PhysRevC.51.1167
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1995VO14      Z.Naturforsch. 50a, 1077 (1995)

T.von Egidy, F.J.Hartmann, S.Schmid, W.Schmid, K.Gulda, J.Jastrzebski, W.Kurcewicz, P.Lubinski, L.Pienkowski, A.Trzcinska, D.Hilscher, W.Bohne, F.Goldenbaum, U.Jahnke, D.Polster, H.Rossner, A.S.Iljinov, D.I.Ivanov, M.V.Mebel, V.G.Nedorezov, A.S.Sudov, J.Eades, S.Neumaier

Nuclear Physics with Antiprotons

NUCLEAR REACTIONS 197Au(p-bar, X), E at rest; 197Au(p-bar, X), E=1.2 GeV; 197Au(p, X), E=1, 6 GeV; compiled, reviewed residuals yields vs mass number. 234U(p-bar, F), E at rest; 234U(p-bar, F), E=fast; measured neutron spectra following fission; deduced absolute fission probabilities.


1994HO08      Phys.Rev. C49, 2555 (1994)

P.Hofmann, A.S.Iljinov, Y.S.Kim, M.V.Mebel, H.Daniel, P.David, T.von Egidy, T.Haninger, F.J.Hartmann, J.Jastrzebski, W.Kurcewicz, J.Lieb, H.Machner, H.S.Plendl, G.Riepe, B.Wright, K.Ziock

Fission of Heavy Nuclei Induced by Stopped Antiprotons. I. Inclusive Characteristics of Fission Fragments

NUCLEAR REACTIONS 238U, 232Th, 209Bi(p-bar, F), E at rest; measured fission fragment energy, mass, θ; deduced fission fragment total mass, total momentum. Intranuclear cascade, evaporation, fission models.

doi: 10.1103/PhysRevC.49.2555
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1994LU13      Phys.Rev.Lett. 73, 3199 (1994)

P.Lubinski, J.Jastrzebski, A.Grochulska, A.Stolarz, A.Trzcinska, W.Kurcewicz, F.J.Hartmann, W.Schmid, T.von Egidy, J.Skalski, R.Smolanczuk, S.Wycech, D.Hilscher, D.Polster, H.Rossner

Neutron Halo in Heavy Nuclei from Antiproton Absorption

NUCLEAR REACTIONS 58Ni, 96Zr, 96Ru, 130Te, 154,144Sm, 176Yb, 232Th, U(p-bar, X), E at 200 MeV/c; measured residuals production yield; deduced neutron halo features.

doi: 10.1103/PhysRevLett.73.3199
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1993JA01      Phys.Rev. C47, 216 (1993)

J.Jastrzebski, W.Kurcewicz, P.Lubinski, A.Grabowska, A.Stolarz, H.Daniel, T.von Egidy, F.J.Hartmann, P.Hofmann, Y.S.Kim, A.S.Botvina, Ye.S.Golubeva, A.S.Iljinov, G.Riepe, H.S.Plendl

Interaction of Stopped Antiprotons with Copper

NUCLEAR REACTIONS Cu(p-bar, X), E at rest; measured residuals cumulative, independent yields for X=7Be-72Zn; deduced average energy deposited. Intranuclear cascade model.

doi: 10.1103/PhysRevC.47.216
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1993JA09      Nucl.Phys. A558, 405c (1993)

J.Jastrzebski, H.Daniel, T.von Egidy, A.Grabowska, Y.S.Kim, W.Kurcewicz, P.Lubinski, G.Riepe, W.Schmid, A.Stolarz, S.Wycech

Signature of Neutron Halo in 232Th from Antiproton Absorption

NUCLEAR REACTIONS 232Th(p-bar, X), E at rest; measured Eγ, Iγ; deduced evidence for 231Th, 231Ac. 232Th deduced neutron, proton densities, neutron halo evidence.

doi: 10.1016/0375-9474(93)90409-Q
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1993PL05      Phys.Scr. 48, 160 (1993)

H.S.Plendl, H.Daniel, T.von Egidy, T.Haninger, F.S.Hartmann, P.Hofmann, Y.S.Kim, H.Machner, G.Riepe, J.Jastrzebski, A.Grabowska, W.Kurcewicz, P.Lubinski, A.Stolarz, A.S.Botvina, Ye.S.Golubeva, A.S.Iljinov, V.G.Nedorezov, A.S.Sudov, K.Ziock

Antiproton-Nucleus Annihilation at Rest

NUCLEAR REACTIONS 238U(p-bar, F), E at rest; compiled, reviewed fission fragment mass distributions. Other p-bar induced reactions included.

doi: 10.1088/0031-8949/48/2/006
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1993VO06      Nucl.Phys. A558, 383c (1993)

T.von Egidy, H.Daniel, F.J.Hartmann, P.Hofmann, Y.S.Kim, W.Schmid, H.H.Schmidt, G.Riepe, H.Machner, P.David, H.S.Plendl, A.S.Iljinov, A.S.Botvina, Ye.S.Golubeva, M.V.Mebel, J.Jastrzebski, W.Kurcewicz

Antiproton Induced Fission

NUCLEAR REACTIONS 209Bi, 232Th, 238U(p-bar, F), E at 105 MeV/c; measured fission fragment mass yield distributions; deduced absolute fission probabilities.

doi: 10.1016/0375-9474(93)90407-O
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1992BO05      Nucl.Phys. A539, 249 (1992)

M.J.G.Borge, D.G.Burke, H.Gietz, P.Hill, N.Kaffrell, W.Kurcewicz, G.Lovhoiden, S.Mattsson, R.A.Naumann, K.Nybo, G.Nyman, T.F.Thorsteinsen, and the ISOLDE Collaboration

On the Nuclear Structure of 229Ra

RADIOACTIVITY 229Fr(β-); measured T1/2, Eγ, Iγ, E X-ray, I X-ray, I(ce), γγ-coin. 229Ra deduced levels, J, π, γ-multipolarity, ICC, Nilsson assignments.

doi: 10.1016/0375-9474(92)90269-P
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1992KU03      Nucl.Phys. A539, 451 (1992)

W.Kurcewicz, G.Lovhoiden, T.F.Thorsteinsen, M.J.G.Borge, D.G.Burke, M.Cronqvist, H.Gabelmann, H.Gietz, P.Hill, N.Kaffrell, R.A.Naumann, K.Nybo, G.Nyman, J.Rogowski, and the ISOLDE Collaboration

The Nuclear Structure of 223Fr

RADIOACTIVITY 223Rn(β-) [from 232Th(p, 5n5p), mass separation]; measured Eγ, Iγ, I(ce), γγ-coin. 223Fr deduced levels, ICC, γ-multipolarity, J, π, rotational bands, dipole moment. Ge, Si(Li) detectors, mini-orange spectrometer.

doi: 10.1016/0375-9474(92)90287-T
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1991PI01      Phys.Rev. C43, 1331 (1991)

L.Pienkowski, J.Jastrzebski, W.Kurcewicz, A.Gizon, J.Blachot, J.Crancon

Interaction of 8-46 MeV/Nucleon 20Ne with Cu

NUCLEAR REACTIONS, ICPND Cu(20Ne, X), E=8-46 MeV/nucleon; measured residuals production σ(E) for X=43K-77Kr, thick target yields; deduced reaction dynamics features.

doi: 10.1103/PhysRevC.43.1331
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1990RI01      Phys.Lett. 235B, 31 (1990)

K.Riisager, M.J.G.Borge, H.Gabelmann, P.G.Hansen, L.Johannsen, B.Jonson, W.Kurcewicz, G.Nyman, A.Richter, O.Tengblad, K.Wilhelmsen, and the ISOLDE Collaboration

First Observation of Beta-Delayed Deuteron Emission

RADIOACTIVITY 6He(β-); measured dα-coin following β-delayed deuteron emission; deduced branching ratio. 6Li levels deduced Gamow-Teller transition strength.


1989AN02      Nucl.Phys. A491, 290 (1989)

E.Andersen, M.J.G.Borge, D.G.Burke, H.Gietz, P.Hill, N.Kaffrell, W.Kurcewicz, G.Lovhoiden, S.Mattsson, R.A.Naumann, K.Nybo, G.Nyman, T.F.Thorsteinsen, and the ISOLDE Collaboration

Measurements of Multipolarities in 225Ra

RADIOACTIVITY 225Fr(β-) [from Th, U(p, X)]; measured I(ce), γγ-, eγ-coin. 225Ra deduced levels, ICC, γ multipolarity, J, π. On-line mass separation, UC2, ThC2 targets, Ge, Si(Li) detectors, mini-orange spectrometer.

doi: 10.1016/0375-9474(89)90704-5
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1989BO11      Z.Phys. A333, 109 (1989)

M.J.G.Borge, D.G.Burke, H.Gabelmann, P.Hill, O.C.Jonsson, N.Kaffrell, W.Kurcewicz, G.Lovhoiden, K.Nybo, G.Nyman, H.L.Ravn, J.Rogowski, T.F.Thorsteinsen, and the ISOLDE Collaboration

The New Neutron-Rich Isotope 228Rn

NUCLEAR REACTIONS 232Th(p, X), E=600 MeV; measured Eγ, Iγ, K X-ray spectra; deduced evidence for 228,227Rn.

RADIOACTIVITY 228,227Rn(β-) [from 232Th(p, xnyp), E=600 MeV]; measured Eγ, Iγ, K X-ray spectra; deduced T1/2.


1989BU09      Z.Phys. A333, 131 (1989)

D.G.Burke, H.Folger, H.Gabelmann, E.Hagebo, P.Hill, P.Hoff, O.Jonsson, N.Kaffrell, W.Kurcewicz, G.Lovhoiden, K.Nybo, G.Nyman, H.Ravn, K.Riisager, J.Rogowski, K.Steffensen, T.F.Thorsteinsen, and the ISOLDE Collaboration

New Neutron-Rich Isotopes of Astatine and Bismuth

RADIOACTIVITY 218,219,220,221,222,223At [from 232Th(p, X), E=600 MeV]; measured βγ-coin, β-activity, K X-ray spectra; deduced T1/2. 216Bi [from 220At(α-decay)]; measured α-spectra; deduced T1/2, Qα, α-branching ratio.

NUCLEAR REACTIONS 232Th(p, X), E=600 MeV; measured At isotope production rates.

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO0004.


1989HO12      Z.Phys. A333, 107 (1989)

S.Hofmann, P.Armbruster, G.Berthes, T.Faestermann, A.Gillitzer, F.P.Hessberger, W.Kurcewicz, G.Munzenberg, K.Poppensieker, H.J.Schott, I.Zychor

The New Nuclei 162Os and 156Ta and the N = 84 Alpha Emitting Isomers

RADIOACTIVITY 162Os, 158,158mW(α); measured Eα, T1/2. 155mLu(α); measured Eα. 156Ta(β+); measured T1/2 lower limit. Sources produced in 102Pd, 106Cd(58Ni, X) reactions.

NUCLEAR REACTIONS 102Pd(58Ni, 3np), E not given; measured residual production σ.


1989RY04      Nucl.Phys. A499, 529 (1989)

K.Rykaczewski, K.-L.Gippert, N.Kaffrell, R.Kirchner, O.Klepper, V.T.Koslowsky, W.Kurcewicz, W.Nazarewicz, E.Roeckl, E.Runte, D.Schardt, W.-D.Schmidt-ott, P.Tidemand-Petersson

Investigation of Neutron-Rich Rare-Earth Nuclei Including the New Isotopes 177Tm and 184Lu

RADIOACTIVITY 177Tm, 184Lu [from W(136Xe, X), E=9, 11.7 MeV/nucleon; W(186W, X), E=11.7, 15 MeV/nucleon; W(238U, X), E=11.4 MeV/nucleon; mass separation]; measured Eγ, Iγ, βγ-, γγ-coin, T1/2. 177Yb, 184Hf deduced levels, J, π. Plastic scintillators, Ge detectors.

NUCLEAR STRUCTURE 171Er, 180Yb, 180,181,183,185Lu, 175,177,179,181,183,185Hf; calculated levels, allowed unhindered beta transitions. Deformed shell model.

doi: 10.1016/0375-9474(89)90544-7
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1987BA28      Phys.Lett. 189B, 287 (1987)

T.Batsch, J.Blachot, Q.Chen, J.Crancon, M.Fatyga, A.Gizon, J.Jastrzebski, H.Karwowski, W.Kurcewicz, A.Lleres, T.Mroz, L.Pienkowski, P.P.Singh, S.E.Vigdor, I.Zychor

Target Mass Dependence of the Average Linear Momentum Transfer

NUCLEAR REACTIONS Co, Cu, Ag(3He, X), (α, X), (14N, X), (20Ne, X), E=10-90 MeV/nucleon; measured σ, forward recoil ranges; deduced average transferred linear momentum. Thick-target-thick-catcher recoil range techniques.

doi: 10.1016/0370-2693(87)91433-X
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1987BO04      Nucl.Phys. A464, 189 (1987)

M.J.G.Borge, D.G.Burke, H.Gietz, P.Hill, N.Kaffrell, W.Kurcewicz, G.Lovhoiden, S.Mattsson, R.A.Naumann, K.Nybo, G.Nyman, T.F.Thorsteinsen, and the ISOLDE Collaboration

Measurements of Multipolarities in 227Ra as Tests of Evidence for Stable Octupole Deformation

RADIOACTIVITY 227Fr(β-) [from U(p, X)]; measured I(ce), γγ-, eγ-coin. 227Ra deduced levels, ICC, γ-multipolarity. Uranium carbide target, on-line mass separation, Ge, Si-Li detector, mini-orange spectrometer.

doi: 10.1016/0375-9474(87)90334-4
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1987KU04      Nucl.Phys. A464, 1 (1987)

W.Kurcewicz, E.Ruchowska, P.Hill, N.Kaffrell, G.Nyman, and the ISOLDE Collaboration

Collective States in 230Ra Fed by β- Decay of 230Fr

RADIOACTIVITY 230Fr(β-) [from 238U(p, 3n6p), mass separation]; measured Eγ, Iγ, γγ-coin, T1/2. 230Ra deduced levels, J, π, Ge(Li) detectors.

doi: 10.1016/0375-9474(87)90418-0
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1986GI08      Nucl.Phys. A453, 1 (1986)

K.-L.Gippert, E.Runte, W.-D.Schmidt-Ott, P.Tidemand-Petersson, N.Kaffrell, P.Peuser, R.Kirchner, O.Klepper, W.Kurcewicz, P.O.Larsson, E.Roeckl, D.Schardt, K.Rykaczewski

Decay Studies of Neutron-Rich Radium and Actinium Isotopes, including the New Nuclides 232Ra and 232,234Ac

RADIOACTIVITY 232Ra, 231,232,233,234Ac(β-) [from W(238U, X), E=11.4 MeV/nucleon, mass separation]; measured Eγ, Iγ, βγ-, γγ-coin, T1/2; deduced log ft. 232,234Th deduced levels, J, π. Plastic scintillators, Ge detectors.

doi: 10.1016/0375-9474(86)90025-4
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1985BO49      Phys.Lett. 164B, 22 (1985)

U.Bosch, W.-D.Schmidt-Ott, P.Tidemand-Petersson, E.Runte, W.Hillebrandt, M.Lechle, F.-K.Thielemann, R.Kirchner, O.Klepper, E.Roeckl, K.Rykaczewski, D.Schardt, N.Kaffrell, M.Bernas, Ph.Dessagne, W.Kurcewicz

Beta-Decay Half-Lives of New Neutron-Rich Chromium-to-Nickel Isotopes and Their Consequences for the Astrophysical R-Process

RADIOACTIVITY 58,59Cr, 63Mn, 66,67Co, 69Ni(β-) [from W(76Ge, X), E=11.4 MeV/nucleon]; measured Eγ, Eβ, βγ-coin; deduced T1/2, r-process implications. Other data considered.

doi: 10.1016/0370-2693(85)90023-1
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1985HI02      Z.Phys. A320, 531 (1985)

P.Hill, N.Kaffrell, W.Kurcewicz, G.Nyman

The New Neutron-Rich Nuclei 231Fr and 231Ra

NUCLEAR REACTIONS 238U(p, X)231Fr/231Ra, E=600 MeV; measured γ-, X-ray spectra; deduced residual production, decay products.

NUCLEAR STRUCTURE 231Fr(β-) [from 238U(p, X), E=600 MeV]; 231Ra(β-) [from 231Fr(β-decay)]; 231Ac(β-) [from 231Ra(β-decay)]; measured γ-, X-ray spectra. 231Fr, 231Ra deduced T1/2. 231Th, 231Ac deduced transition X-ray intensities, T1/2.

doi: 10.1007/BF01415732
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1984ZY01      Nucl.Phys. A414, 301 (1984)

I.Zychor, K.Rykaczewski, W.Kurcewicz, H.Ahrens, H.Folger, N.Kaffrell, N.Trautmann

Hafnium and Lutetium Isotopes Produced in Heavy-Ion Collisions of 7.6 MeV/u 40Ar, 8.5 MeV/u 84Kr and 8.5 MeV/u 136Xe on Tungsten Targets

NUCLEAR REACTIONS W(40Ar, X), E=7.6 MeV/nucleon; W(84Kr, X), E=8.5 MeV/nucleon; W, 186W(136Xe, X), E=8.5 MeV/nucleon; measured production σ for Hf, Lu isotopes. Chemical separation, γ-ray spectroscopy techniques.

doi: 10.1016/0375-9474(84)90646-8
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1983LA27      Z.Phys. A314, 9 (1983)

P.O.Larsson, T.Batsch, R.Kirchner, O.Klepper, W.Kurcewicz, E.Roeckl, D.Schardt, W.F.Feix, G.Nyman, P.Tidemand-Petersson

Direct Proton Decay of 0.56-s 147Tm and Search for this Decay Mode among very Neutron-Deficient Isotopes with 53 ≤ Z ≤ 67

RADIOACTIVITY 147Tm [from 92Mo(58Ni, 2np), E=5 MeV/nuclei]; measured Ep, Ip, β+p-coin, direct proton decay T1/2. 109I, 113Cs, 126,127,128Pm, 130,131,132,133Eu, 136,137,138Tb, 142,143Ho; deduced no evidence for direct proton decay, T1/2 limits.

doi: 10.1007/BF01411823
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1983NY01      Nucl.Phys. A408, 127 (1983)

K.Nybo, T.F.Thorsteinsen, G.Lovhoiden, E.R.Flynn, J.A.Cizewski, R.K.Sheline, D.Decman, D.G.Burke, G.Sletten, P.Hill, N.Kaffrell, W.Kurcewicz, G.Nyman

The Nuclear Structure of 225Ra

NUCLEAR REACTIONS 226Ra(d, t), E=12 MeV; measured Q, σ(θ). 226Ra(polarized d, t), E=17 MeV; measured σ(Et, θ), A(Et, θ). 225Ra deduced levels, J, π. Nilsson model.

RADIOACTIVITY 225Fr [from 238U(p, 6p8n), mass separation]; measured Eγ, Iγ, γγ-coin, T1/2. 225Ra deduced levels, γ-multipolarity. Magnetic spectrometers and Ge(Li) detectors. Nilsson model.

doi: 10.1016/0375-9474(83)90353-6
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1983RU06      Nucl.Phys. A399, 163 (1983)

E.Runte, W.-D.Schmidt-Ott, P.Tidemand-Petersson, R.Kirchner, O.Klepper, W.Kurcewicz, E.Roeckl, N.Kaffrell, P.Peuser, K.Rykaczewski, M.Bernas, P.Dessagne, M.Langevin

Decay Studies of Neutron-Rich Products from 76Ge-Induced Multinucleon Transfer Reactions Including the New Isotopes 62Mn, 63Fe and 71,72,73Cu

NUCLEAR REACTIONS W(76Ge, X), E=9 MeV/nucleon; measured Eγ, Iγ, βγ-, γγ-coin; deduced evidence for 62Mn, 63Fe, 71,72,73Cu. Plastic scintillator, Ge(Li) detectors.

RADIOACTIVITY 62Mn, 63Fe, 67Ni, 71,72,73Cu, 73,74Zn [from W(76Ge, X), E=9 MeV/nucleon, mass separation]; measured Eγ, Iγ, βγ-, γγ-coin, T1/2; deduced log ft. 62Fe, 63Co, 71,72Zn, 73,74Ga deduced levels, J, π. Plastic scintillator, Ge(Li) detectors.

doi: 10.1016/0375-9474(83)90600-0
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1983RY01      Z.Phys. A309, 273 (1983)

K.Rykaczewski, R.Kirchner, W.Kurcewicz, D.Schardt, N.Kaffrell, P.Peuser, E.Runte, W.-D.Schmidt-Ott, P.Tidemand-Petersson, K.-L.Gippert

The New Neutron-Rich Isotope 183Lu

NUCLEAR REACTIONS W, Ta(136Xe, X), E=11.7 MeV/nucleon; measured Eγ, Iγ, βγ-, γ(X-ray)-coin; deduced evidence for 183Lu.

RADIOACTIVITY 183Lu(β-) [from W, Ta(136Xe, X), E=11.7 MeV/nucleon]; measured Eγ, Iγ, βγ-, γ(X-ray)-coin; deduced T1/2, log ft. 183Hf deduced levels, possible J, π, γ-branching, γ-multipolarity, configuration. Natural W, Ta targets, mass separation.

doi: 10.1007/BF01413760
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1983SH37      Phys.Lett. 133B, 13 (1983)

R.K.Sheline, D.Decman, K.Nybo, T.F.Thorsteinsen, G.Lovhoiden, E.R.Flynn, J.A.Cizewski, D.K.Burke, G.Sletten, P.Hill, N.Kaffrell, W.Kurcewicz, G.Nyman, G.Leander

Evidence for Near-Stable Octupole Deformation in 225Ra

RADIOACTIVITY 225Fr(β-) [from 238U(p, X), E=600 MeV]; measured Eγ, Iγ, γγ-coin. 225Ra deduced levels J, π, K, Nilsson assignment, band decoupling parameter.

NUCLEAR REACTIONS 226Ra(d, t), E=12 MeV; 226Ra(polarized d, t), E=17 MeV; measured σ(θ), analyzing power vs θ. 225Ra deduced levels, J, π, K, Nilsson assignment, band decoupling parameter.

doi: 10.1016/0370-2693(83)90094-1
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1983ZY02      Radiochim.Acta 33, 1 (1983)

I.Zychor, K.Rykaczewski, H.Ahrens, H.Folger, W.Kurcewicz, K.Summerer, N.Kaffrell, N.Trautmann

Hafnium and Lutetium Isomers Produced in Heavy-Ion Collisions of 7.6 MeV/u 40Ar, 8.5 MeV/u 84Kr and 8.5 MeV/u 136Xe on (nat)W Targets

NUCLEAR REACTIONS W(40Ar, X), E=7.6 MeV/nucleon; W(84Kr, X), (136Xe, X)177Hf/178Hf/179Hf/180Hf/182Hf/168Lu/174Lu/177Lu/178Lu, E=8.5 MeV/nucleon; measured Eγ, Iγ, γγ-coin; deduced residuals isomer production σ, no evidence for new T1/2 > 2 min isomers.

doi: 10.1524/ract.1983.33.1.1
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